EP1308244B1 - Clamping device with sliding clamping jaw - Google Patents
Clamping device with sliding clamping jaw Download PDFInfo
- Publication number
- EP1308244B1 EP1308244B1 EP02102507A EP02102507A EP1308244B1 EP 1308244 B1 EP1308244 B1 EP 1308244B1 EP 02102507 A EP02102507 A EP 02102507A EP 02102507 A EP02102507 A EP 02102507A EP 1308244 B1 EP1308244 B1 EP 1308244B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- clamping
- clamping lever
- lever
- element according
- housing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000012544 monitoring process Methods 0.000 claims 1
- 102000004315 Forkhead Transcription Factors Human genes 0.000 abstract description 4
- 108090000852 Forkhead Transcription Factors Proteins 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 3
- 230000003313 weakening effect Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000001627 detrimental effect Effects 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000000284 resting effect Effects 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B5/00—Clamps
- B25B5/06—Arrangements for positively actuating jaws
- B25B5/061—Arrangements for positively actuating jaws with fluid drive
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B5/00—Clamps
- B25B5/06—Arrangements for positively actuating jaws
- B25B5/061—Arrangements for positively actuating jaws with fluid drive
- B25B5/064—Arrangements for positively actuating jaws with fluid drive with clamping means pivoting around an axis perpendicular to the pressing direction
Definitions
- the invention relates to a clamping element for clamping workpieces on machine tables and the like by means of a tiltably mounted on a housing, a quadrangular cross-section having clamping lever which is longitudinally displaceable in the clamping plane by the housing is provided with a clevis, in the forks Approximately centrally embedded per a bore and in each bore a rotatably mounted axle is inserted.
- clamping elements are made DE 40 07 590 A1 and the EP 0 283 597 A1 known.
- clamping of workpieces on machine tables and the like requires clamping elements that have a large space to change the workpiece without having to remove the clamping lever.
- the clamping lever must be adaptable to each inserted workpiece. This is achieved once by a change of the clamping lever, which are available in different sizes, and on the other by tension levers which are mounted so that they are adaptable in their length to the workpiece.
- the clamping lever on the clamping elements after DE 40 07 590 A1 or EP 0 283 597 A1 provided with a continuous slot in which mounted on the housing axle bolts slidingly engage.
- Such an arrangement is also subject to problems when the clamping lever is provided with a pressure screw to adapt to different heights of workpieces.
- the pivot point In order to remove such a clamping lever from the sphere of action of the workpiece, the pivot point must be far away from the workpiece, whereby the clamping lever must be made very long, which has a negative effect on the power transmission.
- the screw connection ball disc conical socket is also elastic, so that the workpiece is insufficiently supported at the clamping point, in particular when exposed to lateral forces due to processing.
- a tensioning element in which the tensioning lever is provided with a pivot pin which is slidably guided in guide grooves on a clevis of a housing.
- the axle is mounted in a through hole in the clamping lever, which also leads to a significant weakening of the cross section.
- the clamping element consists of the housing 1 as a basic body. This housing 1 is associated with the clamping lever 2.
- the tensioning lever 2 is guided in a clevis 3 formed in the upper region of the housing 1.
- the clevis 3 is provided with a through hole 4.
- two axle bolts 5 are used.
- Each axle pin 5 has at one end a guide pin 6.
- the guide head 6 is flattened on two opposite sides and thus each forms a guide surface 7.
- the axle pin 5 has a diameter which is adapted to the male forces. Its guide pin can differ in diameter from it. It is important that the flattened guide surfaces have a sufficient cross-section and adapted to the circumstances sliding surface. If the diameter of the guide pin made larger than the diameter of the axle bolt, there is the advantage that at the same time a contact surface is formed on the walls of the fork head, so that the axle bolts 5 are already guided positionally determined in the holes 4.
- the bore 4 is suitably closed by known means so that the free space of the axle is limited.
- the tensioning lever 2 has a quadrangular cross-section and has a groove 8 milled on two opposite sides.
- This groove 8 corresponds exactly to the guide pin 6 with its flattened guide surfaces 7, so that the guide pins 6 on both sides in the grooves 8 slidably with their guide surfaces 7 are inserted.
- the groove 8 is inserted into the clamping lever 2, that it is open at both ends to the outside.
- the clamping lever 2 can be limited by means of a locking screw 12 in its movement so that it is removable only after loosening the locking screw 12.
- a locking pin 13 serves to limit the return of the clamping lever.
- the continuous in the clamping lever 2 groove 8 is thus limited only by the pin 13 for the longitudinal movement of the clamping lever.
- This pin 13 is thus determined in its position and assigned to the clamping lever 2, that the clamping lever, regardless of its length and regardless of its placement on the clamping head 18, in the relaxed state is always fully retracted into the housing 1 and thus behind the front surface 11 lie comes.
- the cocking lever 2 is inserted into the clevis 3 so that the grooves 8 accumulate on the guide surfaces 7 of the axle 5.
- the clamping lever can be moved freely in its longitudinal direction and at the same time pivot about the central axis formed by the axle pin 5.
- the tensioning lever 2 can be tuned in its length to the particular application with it. In addition, it is possible to provide tension levers of different lengths, which can be replaced very easily.
- the clamping process itself can be hydraulically initiated.
- a drive with a piston 10 is provided.
- the hydraulic supply can be done suitably from below into the clamping element via the terminal 20. This has a favorable effect on the installation of the elements.
- the retracted completely in the housing 1 in the relaxed state tensioning lever 2 thus ensures the workpiece to be inserted an optimal clearance, since the housing 1 with its front surface 11 forms a smooth plane and thus allows the insertion and removal effortlessly for each workpiece.
- the clamping unit can be arbitrarily mounted on pallets or devices and secure by means of a fastening screw 14.
- a support element 16 may additionally be provided.
- This adjustable in height pressure screw 17 provides a good Anpoulkeit the clamping element to different thicknesses of the workpiece 15.
- the clamping lever 2 moves with the pressure screw 17 in the housing 1 a , so that the pressure screw 17 is received in the pocket 19 formed in the housing 1, whose width corresponds approximately to the clear width of the fork head 3.
- the clamping lever 2 is so far retracted together with the pressure screw 17 in the housing 1 that it lies behind the front surface 11.
- the clamping lever 2 is inserted with its two-sided groove 8 from the front into the clevis 3 and on the guide surfaces 7 of the axle pin 5 already used pushed.
- the clamping lever is in this case completely reset until it strikes with its pin 13 on the guide pin 6.
- the element for the clamping operation is ready.
- the clamping lever 2 is fully retracted into the housing 1, so that the front surface 11 of the housing 1 forms a smooth plane.
- the clamping operation is initiated.
- the clamping lever is advanced until it lies exactly with its clamping head 18 or its pressure screw 17 above the point of the workpiece at which the clamping force is to be initiated.
- the hydraulic pressure is released and the piston 10 moves under the clamping lever and raises it.
- the clamping lever tilts around the center axis of the axle and lowers the clamping head 18 on the workpiece. This completes the tensioning process.
- This display refers once to the two end positions of the clamping lever and on the other hand also to the respective position during a work process. This can be used to monitor all states that can occur, among other things, as a result of large processing forces.
- To display the respective position sensors are used, which are placed on the housing and on the way a determination of the clamping lever is traceable.
Abstract
Description
Die Erfindung bezieht sich auf ein Spannelement zum Spannen von Werkstücken auf Maschinentischen und dergleichen mittels eines kippbar an einem Gehäuse gelagerten, einen Viereck-Querschnitt aufweisenden Spannhebels, der in der Spannebene längsverschiebbar angeordnet ist, indem das Gehäuse mit einem Gabelkopf versehen ist, in dessen Gabeln annähernd mittig je eine Bohrung eingelassen und in jeder Bohrung ein drehbar gelagerter Achsbolzen eingefügt ist.The invention relates to a clamping element for clamping workpieces on machine tables and the like by means of a tiltably mounted on a housing, a quadrangular cross-section having clamping lever which is longitudinally displaceable in the clamping plane by the housing is provided with a clevis, in the forks Approximately centrally embedded per a bore and in each bore a rotatably mounted axle is inserted.
Solche Spannelemente sind aus
Das Spannen von Werkstücken auf Maschinentischen und dergleichen bedingt Spannelemente, die über einen großen Freiraum verfügen, um das Werkstück wechseln zu können, ohne den Spannhebel ausbauen zu müssen. Darüber hinaus müssen die Spannhebel dem jeweils eingelegten Werkstück anpassbar sein. Dieses wird einmal durch einen Wechsel der Spannhebel, die in verschiedenen Größen vorhanden sind, erreicht und zum anderen durch Spannhebel, die so gelagert sind, dass sie in ihrer Länge an das Werkstück anpassbar sind. Zu diesem Zweck sind die Spannhebel bei den Spannelementen nach
Die Kräfte, die durch die Bearbeitung des Werkstückes entstehen, können sehr groß sein und müssen von den Spannhebeln und ihren Lagern sicher aufgenommen werden. Querschnittsveränderungen an den Spannhebeln durch Einbringen der Langlöcher zur Längsverschiebung wirken sich nachteilig auf die Kraftübertragung aus. Darüber hinaus sind Langlöcher Verschmutzungsgefahren durch Späneflug ausgesetzt.The forces generated by the machining of the workpiece can be very large and must be safely absorbed by the clamping levers and their bearings. Cross-sectional changes to the clamping levers by introducing the slots for longitudinal displacement have a detrimental effect on the power transmission. In addition, long holes are exposed to fouling hazards due to chip pitch.
Es ist bekannt (VDI-Verlag 1992 Seite 489 Vorrichtungen, rationelle Planung und Konstruktion) ein Spannelement mit einem Spannhebel zu versehen, der von einer Schraube gehalten wird. Diese Schraube ist mit einer Kegelpfanne versehen, die in einer Kugelscheibe gelagert ist. Der Spannhebel ist mit einem Längsschlitz versehen, durch den die Schraube geführt ist. Dieser Längsschlitz führt zu einer starken Schwächung des Querschnitts des Spannhebels, außerdem ergibt sich durch die auf dem Spannhebel aufliegende Kugelscheibe und der Kegelpfanne der Schraube ein sehr hoch liegender Schwenkmittelpunkt für den Spannhebel, so dass schräg auf das Werkstück einwirkende Kraftkomponenten nicht auszuschließen sind, was zu einem Verreißen des Werkstückes führen kann. Der Längsschlitz ist ferner Verschmutzungen durch Späne der Bearbeitung ausgesetzt, was zu Schwierigkeiten bei der Rückführung des Spannhebels beiträgt.It is known (VDI-Verlag 1992 page 489 devices, rational planning and design) to provide a clamping element with a clamping lever which is held by a screw. This screw is provided with a cone, which is mounted in a spherical disc. The clamping lever is provided with a longitudinal slot through which the screw is guided. This longitudinal slot leads to a strong weakening of the cross section of the clamping lever, also results from the resting on the clamping lever spherical washer and the cone of the screw a very high-lying pivot center for the clamping lever, so that obliquely acting on the workpiece force components can not be excluded, which can lead to a tearing of the workpiece. The longitudinal slot is also exposed to contamination by chips machining, which contributes to difficulties in the return of the clamping lever.
Eine solche Anordnung ist auch dann mit Problemen behaftet, wenn der Spannhebel mit einer Druckschraube versehen wird zur Anpassung an verschiedene Werstückhöhen. Um einen solchen Spannhebel aus dem Wirkungsbereich des Werkstückes zu entfernen muss der Schwenkpunkt weit vom Werkstück entfernt liegen, wodurch der Spannhebel sehr lang ausgeführt sein muss, was sich negativ auf die Kraftübertragung auswirkt. Die Schraubverbindung Kugelscheibe Kegelpfanne ist zudem elastisch, so dass das Werkstück am Spannpunkt insbesondere beim Einwirken von Querkräften infolge Bearbeitung ungenügend abgestützt ist.Such an arrangement is also subject to problems when the clamping lever is provided with a pressure screw to adapt to different heights of workpieces. In order to remove such a clamping lever from the sphere of action of the workpiece, the pivot point must be far away from the workpiece, whereby the clamping lever must be made very long, which has a negative effect on the power transmission. The screw connection ball disc conical socket is also elastic, so that the workpiece is insufficiently supported at the clamping point, in particular when exposed to lateral forces due to processing.
Aus der
Es ist Aufgabe der Erfindung, ein Spannelement derart zu gestalten, dass der Spannhebel schwenkbar ausgeführt und in seiner Längsrichtung verschiebbar gelagert ist, wobei jedoch Schwächungen des Querschnitts des Spannhebels weitest gehend vermieden sind.It is an object of the invention to design a clamping element such that the clamping lever is pivotally mounted and slidably mounted in its longitudinal direction, but weakening of the cross section of the clamping lever are largely avoided.
Zur Lösung dieser Aufgabe ist das erfindungsgemäße Spannelement dadurch gekennzeichnet,
- a) dass die Achsbolzen einen Führungszapfen besitzen, der mit zwei gegenüberliegenden Abflachungen in Form von Führungsflächen versehen ist,
- b) dass an zwei gegenüberliegenden Seiten des Spannhebels je eine Führungsnut eingebracht ist, in der ein Führungszapfen des Achsbolzens mit seinen Führungsflächen gleitend einführbar ist und die zu beiden Enden des Spannhebels offen ist, und
- c) dass der Spannhebel mittels einer Sperrschraube festsetzbar und mittels eines Stiftes in seiner Lage bestimmbar ist.
- a) that the axle bolts have a guide pin which is provided with two opposite flats in the form of guide surfaces,
- b) that on each of two opposite sides of the clamping lever a respective guide groove is introduced, in which a guide pin of the axle pin with its guide surfaces is slidably inserted and which is open to both ends of the clamping lever, and
- c) that the clamping lever by means of a locking screw can be fixed and determined by means of a pin in its position.
Der Vorteil dieser Lösung ist durch die äußerst stabile Lagerung des Spannhebels gegeben, so dass Querkräfte infolge der Bearbeitung wirkungslos auf die Spanneinheit sind. Darüber hinaus erlaubt die Konstruktion kleine Abmessungen in Verschieberichtung und damit die Vermeidung von Störkanten für Zerspanungswerkzeuge.The advantage of this solution is given by the extremely stable storage of the clamping lever, so that lateral forces due to the processing are ineffective on the clamping unit. In addition, the construction allows small dimensions in the direction of displacement and thus the avoidance of interference edges for cutting tools.
In den Figuren ist die Erfindung näher beschrieben.
-
Fig. 1 zeigt einen Schnitt durch das Spannelement im gespannten Zustand. -
Fig. 2 zeigt eine Draufsicht. -
Fig. 3 zeigt eine Seitenansicht mit einem Teilschnitt der Lagerstelle. -
Fig. 4 zeigt die Vorderansicht im gespannten Zustand und die Spannhebel mit verstellbarer Druckschraube. -
Fig. 5 zeigt den Achsbolzen mit verschiedenen Führungszapfen.
-
Fig. 1 shows a section through the clamping element in the tensioned state. -
Fig. 2 shows a plan view. -
Fig. 3 shows a side view with a partial section of the bearing. -
Fig. 4 shows the front view in the tensioned state and the clamping lever with adjustable pressure screw. -
Fig. 5 shows the axle with different guide pins.
Das Spannelement besteht aus dem Gehäuse 1 als Grundkörper. Diesem Gehäuse 1 ist der Spannhebel 2 zugeordnet. Der Spannhebel 2 wird in einem im oberen Bereich des Gehäuses 1 gebildeten Gabelkopf 3 geführt. Der Gabelkopf 3 ist mit einer durchgehenden Bohrung 4 versehen. In diesen Bohrungen 4 sind zwei Achsbolzen 5 eingesetzt. Jeder Achsbolzen 5 hat an einem Ende einen Führungszapfen 6. Der Führungskopf 6 ist an zwei gegenüberliegenden Seiten abgeflacht und bildet damit je eine Führungsfläche 7. Der Achsbolzen 5 hat einen Durchmesser, der den aufzunehmenden Kräften angepaßt ist. Sein Führungszapfen kann sich im Durchmesser davon unterscheiden. Wichtig ist, daß die abgeflachten Führungsflächen einen ausreichenden Querschnitt und eine den Umständen angepaßte Gleitfläche aufweisen. Wird der Durchmesser des Führungszapfen größer als der Durchmesser des Achsbolzens gemacht ergibt sich der Vorteil, daß zugleich eine Anlagefläche an die Wandungen des Gabelkopfes gebildet wird, so daß die Achsbolzen 5 in den Bohrungen 4 bereits lagebestimmt geführt sind.The clamping element consists of the housing 1 as a basic body. This housing 1 is associated with the clamping lever 2. The tensioning lever 2 is guided in a
In den Fällen, in denen der Durchmesser des Führungszapfens gleich oder kleiner als der Durchmesser des Achsbolzens ist, wird die Bohrung 4 zweckmäßig mit bekannten Mitteln so verschlossen, daß der Freiraum des Achsbolzen begrenzt ist.In cases where the diameter of the guide pin is equal to or smaller than the diameter of the axle, the bore 4 is suitably closed by known means so that the free space of the axle is limited.
Der Spannhebel 2 hat einen Viereck-Querschnitt und hat an zwei gegenüberliegenden Seiten je eine Nut 8 eingefräst. Diese Nut 8 entspricht exakt dem Führungszapfen 6 mit seinen abgeflachten Führungsflächen 7, so daß die Führungszapfen 6 beidseitig in den Nuten 8 gleitend mit ihren Führungsflächen 7 einführbar sind. Die Nut 8 ist so in den Spannhebel 2 eingelassen, daß sie an beiden Enden nach außen offen ist. Der Spannhebel 2 kann mittels einer Sperrschraube 12 in seinem Bewegungsablauf so begrenzt werden, daß er nur nach Lösen der Sperrschraube 12 entfernbar ist. Ein Sperrstift 13 dient zur Begrenzung des Rücklaufs des Spannhebels.The tensioning lever 2 has a quadrangular cross-section and has a groove 8 milled on two opposite sides. This groove 8 corresponds exactly to the guide pin 6 with its flattened guide surfaces 7, so that the guide pins 6 on both sides in the grooves 8 slidably with their guide surfaces 7 are inserted. The groove 8 is inserted into the clamping lever 2, that it is open at both ends to the outside. The clamping lever 2 can be limited by means of a locking screw 12 in its movement so that it is removable only after loosening the locking screw 12. A
Die im Spannhebel 2 durchgehend eingelassene Nut 8 wird für die Längsbewebung des Spannhebels somit nur durch den Stift 13 begrenzt. Dieser Stift 13 ist damit in seiner Lage bestimmt und so dem Spannhebel 2 zugeordnet, daß der Spannhebel unabhängig von seiner Länge und unabhängig von seiner Bestückung am Spannkopf 18, im entspannten Zustand immer ganz in das Gehäuse 1 eingefahren ist und damit hinter der Frontfläche 11 zu liegen kommt.The continuous in the clamping lever 2 groove 8 is thus limited only by the
Der Spannhebel 2 wird in den Gabelkopf 3 so eingeführt, daß die Nuten 8 auf die Führungsflächen 7 der Achsbolzen 5 auflaufen. Damit läßt sich der Spannhebel in seiner Längsrichtung beliebig verschieben und gleichzeitig um die durch die Achsbolzen 5 gebildete Mittenachse schwenken. Der Spannhebel 2 kann in seiner Länge auf den jeweiligen Anwendungsfall damit abgestimmt werden. Darüber hinaus ist es möglich, Spannhebel unterschiedlicher Länge vorzusehen, die sehr leicht ausgewechselt werden können.The cocking lever 2 is inserted into the
Der Spannvorgang selbst kann hydraulisch eingeleitet werden. Dazu ist ein Antrieb mit Kolben 10 vorgesehen. Die Hydraulikzufuhr kann zweckmäßig von unten in das Spannelement über den Anschluß 20 erfolgen. Dieses wirkt sich auf den Einbau der Elemente günstig aus.The clamping process itself can be hydraulically initiated. For this purpose, a drive with a piston 10 is provided. The hydraulic supply can be done suitably from below into the clamping element via the
Der im entspannten Zustand ganz in das Gehäuse 1 eingefahrene Spannhebel 2 sichert somit dem einzulegenden Werkstück einen optimalen Freiraum zu, da das Gehäuse 1 mit seiner Frontfläche 11 eine glatte Ebene bildet und somit für jedes Werkstück das Einlegen und Entnehmen mühelos gestattet.The retracted completely in the housing 1 in the relaxed state tensioning lever 2 thus ensures the workpiece to be inserted an optimal clearance, since the housing 1 with its front surface 11 forms a smooth plane and thus allows the insertion and removal effortlessly for each workpiece.
Die Spanneinheit läßt sich beliebig auf Paletten oder Vorrichtungen montieren und mittels einer Befestigungsschraube 14 festsetzen. Zur Aufnahme eines Werkstückes 15 kann zusätzlich ein Stützelement 16 vorgesehen sein.The clamping unit can be arbitrarily mounted on pallets or devices and secure by means of a
Die
Der Spannhebel 2 wird mit seiner beidseitigen Nut 8 von vorn in den Gabelkopf 3 eingeführt und auf die Führungsflächen 7 der bereits eingesetzten Achsbolzen 5 geschoben. Der Spannhebel wird hierbei ganz zurückgesetzt, bis er mit seinem Stift 13 am Führungszapfen 6 anschlägt. Damit ist das Element für den Spannvorgang bereit. In dieser Position ist der Spannhebel 2 ganz in das Gehäuse 1 eingefahren, so daß die Frontfläche 11 des Gehäuses 1 eine glatte Ebene bildet.The clamping lever 2 is inserted with its two-sided groove 8 from the front into the
Nach entsprechender Montage und Einlegen des Werkstücks wird der Spannvorgang eingeleitet. Der Spannhebel wird so weit vorgeschoben, bis er exakt mit seinem Spannkopf 18 oder seiner Druckschraube 17 über dem Punkt des Werkstückes liegt, an dem die Spannkraft eingeleitet werden soll. Nunmehr wird der hydraulische Druck freigegeben und der Kolben 10 fährt unter den Spannhebel und hebt diesen an. Der Spannhebel kippt um die Mittenachse der Achsbolzen und senkt den Spannkopf 18 auf das Werkstück ab. Damit ist der Spannvorgang vollzogen.After appropriate assembly and insertion of the workpiece, the clamping operation is initiated. The clamping lever is advanced until it lies exactly with its clamping
In bestimmten Fällen ist es erforderlich die Lage des Spannhebels 2 eines jeden Spannelementes zu erfassen und anzuzeigen. Diese Anzeige bezieht sich einmal auf die beiden Endstellungen des Spannhebels und zum anderen auch auf die jeweilige Lage während eines Arbeitsvorganges. Damit lassen sich alle Zustände überwachen, die unter anderem auch als Folge großer Bearbeitungskräfte auftreten können. Zur Anzeige der jeweiligen Stellung werden Sensoren eingesetzt, die am Gehäuse plaziert sind und über die eine Wegbestimmung des Spannhebels nachvollziehbar ist.In certain cases, it is necessary to detect the position of the clamping lever 2 of each clamping element and display. This display refers once to the two end positions of the clamping lever and on the other hand also to the respective position during a work process. This can be used to monitor all states that can occur, among other things, as a result of large processing forces. To display the respective position sensors are used, which are placed on the housing and on the way a determination of the clamping lever is traceable.
- 11
- Gehäusecasing
- 22
- Spannhebelclamping lever
- 33
- Gabelkopfclevis
- 44
- Bohrungdrilling
- 55
- Achsbolzenaxle
- 66
- Führungszapfenspigot
- 77
- Führungsflächeguide surface
- 88th
- Führungsnutguide
- 9 109 10
- Kolbenpiston
- 1111
- Frontflächefront surface
- 1212
- Sperrschraubelocking screw
- 1313
- Sperrstiftlocking pin
- 1414
- Befestigungsschraubefixing screw
- 1515
- Werkstückworkpiece
- 1616
- Stützelementsupport element
- 1717
- Druckschraubepressure screw
- 1818
- Spannkopfclamping head
- 1919
- Taschebag
- 2020
- Hydraulik-AnschlußHydraulic connection
Claims (9)
- Clamping element for clamping work pieces to machine tables and the like by means of a quadrilaterally cross sectional clamping lever (2) tiltably mounted on a housing (1), said lever (2) being longitudinally displaceable in the clamping plane, in that the housing (1) is provided with a clevis (3), in each of the forks of which is sunk a hole (4) and in each hole (4) is inserted a rotatably mounted axial bolt (5), whereina) each axial bolt (5) possesses a pilot pin (6) that is provided with two opposing flattenings in the form of guide surfaces (7),b) a guide groove (8) is introduced on each of the two opposing sides of the clamping lever (2), into which groove can be slidingly inserted a pilot pin (6) of the axial bolt (5) with its guide surfaces (7) and which is open at both ends of the clamping lever (2), andc) the clamping lever (2) is fixable by means of a locking screw (12) and held in its position by means of a pin (13).
- Clamping element according to Claim 1 wherein the guide groove (8) of the clamping lever and the guide surfaces (7) of the pilot pin (6) are compatible.
- Clamping element according to Claim 2 wherein the diameter of the pilot pin (6) is smaller, identical or greater than the diameter of the axial bolt (5).
- Clamping element according to claims 1 to 3 wherein the clevis (3) is assembled with two rotatably mounted axial bolts (5) in its holes (4), and the pilot pins (6) of the axial bolts project with their guide surfaces (7) into the space between the forks, and the clamping lever (2) can be inserted into the clevis and can be mounted with its grooves (8) over the guide surfaces (7) and longitudinally displaced, and is tiltable about the central axis of the axial bolt (5).
- Clamping element according to Claim 4 wherein the longitudinally displaceable and tiltable clamping lever (2) is hydraulically moved into its clamping position by pistons.
- Clamping element according to one of claims 1 to 5 wherein the clamping lever (2) is assembled on the clamping head (18) with a pressure screw (17).
- Clamping element according to one of claims 1 to 6 wherein the clamping lever (2) in the slackened state can be moved into the housing (1).
- Clamping element according to claims 6 and 7 wherein a pocket (19) is formed in the housing (1) as a free space for the pressure screw (17) fastened on the head of the clamping lever (2).
- Clamping element according to claims 1 to 8 wherein sensors for monitoring the position of the clamping lever (2) are provided on the housing (1).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10154139 | 2001-11-03 | ||
| DE10154139A DE10154139A1 (en) | 2001-11-03 | 2001-11-03 | Clamping element with sliding clamp |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP1308244A2 EP1308244A2 (en) | 2003-05-07 |
| EP1308244A3 EP1308244A3 (en) | 2006-09-27 |
| EP1308244B1 true EP1308244B1 (en) | 2009-10-14 |
Family
ID=7704584
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP02102507A Expired - Lifetime EP1308244B1 (en) | 2001-11-03 | 2002-10-29 | Clamping device with sliding clamping jaw |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US6736383B2 (en) |
| EP (1) | EP1308244B1 (en) |
| AT (1) | ATE445483T1 (en) |
| DE (2) | DE10154139A1 (en) |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1886231B (en) * | 2004-03-08 | 2010-10-06 | 帕斯卡工程株式会社 | Clamp device and method |
| US8827219B2 (en) | 2011-12-09 | 2014-09-09 | Kessler Crane, Inc. | Quick release plate |
| JP5856027B2 (en) * | 2012-08-09 | 2016-02-09 | 株式会社コスメック | Clamping device |
| CN104148965A (en) * | 2014-07-31 | 2014-11-19 | 扬中市金德纺织机械设备厂 | Milling fixture |
| CN104353880B (en) * | 2014-11-05 | 2016-08-24 | 重庆和剑机械制造有限公司 | A kind of automobile one or two keeps off shift fork lower plane finishing equipment |
| CN104368853B (en) * | 2014-11-05 | 2016-08-24 | 重庆和剑机械制造有限公司 | A kind of machining equipment of milling one or two gear shift fork lower planes |
| CN107378575B (en) * | 2017-08-24 | 2023-08-22 | 黄石华旦机械制造有限公司 | Tool for cutting crankshaft positioning groove |
| CN107717564A (en) * | 2017-11-09 | 2018-02-23 | 许昌远东传动轴股份有限公司 | A kind of centre bore positioning fixture that earhole is bored for slip shaft yoke |
| WO2022032178A1 (en) | 2020-08-06 | 2022-02-10 | Mate Precision Technologies Inc. | Vise assembly |
| US11878381B2 (en) | 2020-08-06 | 2024-01-23 | Mate Precision Technologies Inc. | Tooling base assembly |
| CN112077624B (en) * | 2020-08-26 | 2022-08-05 | 江西昌河航空工业有限公司 | Helicopter tail rotor five-fork piece key groove fixing and machining device |
| CN115179071A (en) * | 2022-07-29 | 2022-10-14 | 重庆跃进机械厂有限公司 | Fork-shaped exhaust rocker arm fixing clamp and fork-shaped exhaust rocker arm machining method |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3302943A (en) * | 1963-12-19 | 1967-02-07 | Simplex Level Company Inc | Hold-down clamp |
| US3724837A (en) * | 1970-09-02 | 1973-04-03 | Dover Corp | Retracting clamp |
| US4451026A (en) * | 1982-06-30 | 1984-05-29 | Stevens Engineering, Inc. | Clamping device |
| US4538797A (en) * | 1983-07-08 | 1985-09-03 | Clearing, A Division Of U.S. Industries, Inc. | Adjustable hydraulic die clamp |
| US4590788A (en) * | 1984-10-04 | 1986-05-27 | Wallis Bernard J | Die clamp |
| EP0283597A3 (en) | 1987-02-25 | 1989-12-06 | Bernhard Joseph Wallis | Clamp |
| JP2787575B2 (en) * | 1988-07-11 | 1998-08-20 | 株式会社コスメック | Wedge boost hydraulic clamp |
| DE4007590A1 (en) | 1990-03-09 | 1991-09-12 | Hbs Heberle Bolzenschweiss Sys | Clamping mechanism for workpiece - has driving member acting on control face on lever containing elongated guide hole |
| US5002265A (en) * | 1990-04-10 | 1991-03-26 | Burt Wayne E | Variable height work holder |
| DE4307058A1 (en) | 1993-03-06 | 1994-09-08 | David Fischer | Clamping device for clamping workpieces on machine tables or pallets |
| JP3296976B2 (en) * | 1996-10-14 | 2002-07-02 | 新日本工機株式会社 | Table operating device for machine tool and control method thereof |
| US6371467B1 (en) * | 2000-11-24 | 2002-04-16 | Kabushiki Kaisha Kosmek | Movable clamping apparatus |
-
2001
- 2001-11-03 DE DE10154139A patent/DE10154139A1/en not_active Withdrawn
-
2002
- 2002-10-29 AT AT02102507T patent/ATE445483T1/en active
- 2002-10-29 EP EP02102507A patent/EP1308244B1/en not_active Expired - Lifetime
- 2002-10-29 DE DE50213915T patent/DE50213915D1/en not_active Expired - Lifetime
- 2002-11-01 US US10/286,567 patent/US6736383B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| EP1308244A3 (en) | 2006-09-27 |
| DE50213915D1 (en) | 2009-11-26 |
| EP1308244A2 (en) | 2003-05-07 |
| US20030085500A1 (en) | 2003-05-08 |
| US6736383B2 (en) | 2004-05-18 |
| ATE445483T1 (en) | 2009-10-15 |
| DE10154139A1 (en) | 2003-05-15 |
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